(19)
(11) EP 1 311 558 A1

(12)

(43) Date of publication:
21.05.2003 Bulletin 2003/21

(21) Application number: 01954613.4

(22) Date of filing: 29.06.2001
(51) International Patent Classification (IPC)7: C08F 4/645, C08F 4/02, C08F 10/00
(86) International application number:
PCT/US0120/836
(87) International publication number:
WO 0201/0227 (07.02.2002 Gazette 2002/06)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 02.08.2000 US 631444

(71) Applicant: Univation Technologies LLC
Houston, TX 77056 (US)

(72) Inventors:
  • YANG, Xinmin
    Franklin Park, NJ 08823 (US)
  • AWE, Michael, D.
    Langhoren, PA 19047 (US)
  • MURUGANANDAM, Natarajan, A.
    Belle Mead, NJ 08502 (US)

(74) Representative: Hayes, Adrian Chetwynd et al
Boult Wade Tennant,Verulam Gardens70 Gray's Inn Road
London WC1X 8BT
London WC1X 8BT (GB)

   


(54) METHOD FOR PRODUCING HIGHLY PRODUCTIVE SUPPORTED IONIC CATALYST FOR GAS PHASE POLYMERIZATION